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Users plan optimization for participatory urban texture documentation / H. Shirani-Mehr in Geoinformatica, vol 17 n° 1 (January 2013)  

Public [article]  inGeoinformatica > vol 17 n° 1 (January 2013) . - pp 173 - 205 Titre : Users plan optimization for participatory urban texture documentation Type de document : Article/Communication Auteurs : H. Shirani-Mehr, Auteur ; et al., Auteur Année de publication : 2013 Article en page(s) : pp 173 - 205 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] acquisition de données [Termes IGN] données localisées des bénévoles [Termes IGN] milieu urbain [Termes IGN] participation du public [Termes IGN] prise de vue terrestre [Termes IGN] production participative [Termes IGN] téléphone intelligent [Termes IGN] téléphonie mobile Résumé : (Auteur) We envision participatory texture documentation (PTD) as a process in which a group of users (dedicated individuals and/or general public) with camera-equipped mobile phones participate in collaborative collection of urban texture information. PTD enables inexpensive, scalable and high quality urban texture documentation. We propose to implement PTD in two steps. At the first step, termed viewpoint selection, a minimum number of viewpoints in the urban environment are selected from which the texture of the entire urban environment (the part visible to cameras) with a desirable quality can be collected/captured. At the second step, called viewpoint assignment, the selected viewpoints are assigned to the participating users such that given a limited number of users with various constraints (e.g., restricted available time) users can collectively capture the maximum amount of texture information within a limited time interval. In this paper, we define each of these steps and prove that both are NP-hard problems. Accordingly, we propose efficient algorithms to implement the viewpoint selection and assignment problems. We study, profile and verify our proposed solutions comparatively by both rigorous analysis and extensive experiments. Numéro de notice : A2013-050 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/SOCIETE NUMERIQUE Nature : Article DOI : 10.1007/s10707-012-0166-7 Date de publication en ligne : 11/08/2012 En ligne : https://doi.org/10.1007/s10707-012-0166-7 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32188 [article]

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